Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 330 · 40 sums

The trick (Ekanyunena Purvena): Write the number with as many digits as there are nines (add zeros in front if needed). Left part: the number minus 1. Right part: “all from 9 and the last from 10” of the number. More digits than the nines (237 × 99)? Split off as many digits as there are nines (2 | 37): left = number − (front part + 1) = 234, right = complement of 37 = 63 → 23463.

1. 1.4 × 99 =
2. 2.325 × 999 =
3. 3.99 × 999 =
4. 4.21 × 99 =
5. 5.3955 × 999 =
6. 6.524 × 99 =
7. 7.36 × 9 =
8. 8.15 × 99 =
9. 9.75 × 99 =
10. 10.2451 × 99 =
11. 11.7 × 9 =
12. 12.45 × 99 =
13. 13.31 × 99 =
14. 14.6 × 9 =
15. 15.72 × 99 =
16. 16.7 × 9 =
17. 17.286 × 999 =
18. 18.33 × 99 =
19. 19.912 × 999 =
20. 20.14 × 99 =
21. 21.5 × 9 =
22. 22.526 × 99 =
23. 23.8 × 9 =
24. 24.2109 × 99 =
25. 25.74 × 99 =
26. 26.761 × 999 =
27. 27.114 × 9 =
28. 28.6 × 9 =
29. 29.846 × 999 =
30. 30.4 × 9 =
31. 31.372 × 999 =
32. 32.4198 × 999 =
33. 33.156 × 999 =
34. 34.483 × 999 =
35. 35.2262 × 99 =
36. 36.5 × 9 =
37. 37.11 × 99 =
38. 38.84 × 99 =
39. 39.6 × 9 =
40. 40.38 × 99 =

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